1) schinfelsite
苦橄玢岩
2) olivine-pyroxene prphyrite
橄辉玢岩
3) picrite
['pikrait]
苦橄岩
1.
Mineral chemistry and geological significance of clinopyroxenes from Middle Devonian picrite on the southern margin of the Altay Mountain;
阿尔泰山南缘中泥盆世苦橄岩中单斜辉石的成分特征及其地质意义
2.
Serpentinized euhedral-subhedral olivine phenocrystals are dominant in the picrites.
苦橄岩的斑晶主要为蛇纹石化的自形-半自形橄榄石。
3.
Here we present Re-Os abundances and Os isotopic compositions of 12 picrites and 6 associated basalts collected from Daju and Shiman sections,Lijiang area,western part of Emeishan large igneous province(ELIP Zhang et al,2006).
报导了云南丽江地区大具和仕满剖面12个苦橄岩和6个玄武岩的Re,Os含量和Os同位素组成。
4) picrites
苦橄岩
1.
The main reason is that the hypothesis of mantle plume is supported by many geologic evidences:(1)large volume mantle-derived magmas;(2)>500 m uplift before magmatism;(3)high-temperature picrites or komatiites;(4)hots.
大火成岩省以短时间内的巨量喷发为特征,这种特殊现象一般被认为是地幔柱作用的结果,原因是它可以解释大火成岩省中的许多现象:(1)短时间内的巨量幔源岩浆;(2)喷发前>500 m的隆起;(3)高温苦橄岩和科马提岩的存在;(4)热点轨迹;(5)在没有挥发分和压力降低的条件下地幔发生熔融;(6)高的3He/4He比值。
2.
The absolute concentrations of Os in most of the Emeishan picrites are much higher than in komatiites, and in estimated primitive mantle.
本文对峨眉山大火成岩省中苦橄岩及其共生的玄武岩进行了铂族元素(PGE)分析,结果表明苦橄岩比玄武岩的PGE含量要高至少一个数量级,并且具有明显高的Os含量,不仅比熔融程度最高的科马提岩要高,而且比原始地幔还要高,另外,还显示出超球粒陨石的Os/Ir比值(2。
5) picrite
['pikrait]
橄苦岩
6) Ferropicrites
富铁苦橄岩
1.
High-Fe, magnesian rocks (Ferrobasalts/Ferropicrites) are characterized by high FeO~* contents (tatal Fe as FeO~*)(generally >14%), silica-poor, and low alkaline.
高铁镁质岩石(Ferrobasalts/Ferropicrites)较正常镁质岩石高FeO(通常在14%以上)、贫硅、低碱,具独特主量元素特征,属富铁拉斑玄武岩—富铁苦橄岩。
补充资料：玢岩
见斑岩。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条